Jr. Information Systems Security Officer

General Dynamics Information Technology
Falls Church, VA
Public Trust: None
Requisition Type: Regular
Your Impact

Own your opportunity to be at the center of GDIT’s business operations. Make an impact by collaborating across functions to make mission success achievable.

Job Description

Transform technology into opportunity as a Jr. Information Systems Security Officer with GDIT. You will assist with preparing and maintaining security documentation, supporting system accreditation activities, and ensuring adherence to federal cybersecurity standards. You’ll receive on-the-job training and mentorship from experienced cybersecurity professionals, gain exposure to NIST RMF and DoW security standards, and build a foundation for a career in cybersecurity compliance and risk management.

HOW A JUNIOR INFORMATION SYSTEMS SECURITY OFFICER WILL MAKE AN IMPACT

  • Train to serve as an Information System Security Officer (ISSO) and support RMF Assessment and Authorization (A&A) processes for new and existing systems.
  • Prepare and submit System Security Plans (SSPs), Plans of Action and Milestones (POA&Ms), and risk assessment documentation; collaborate with Authorizing Officials (AOs) to achieve and maintain Authorization to Operate (ATO) status.
  • Conduct compliance audits and reviews to verify adherence to NIST, DoW, and organizational security requirements.
  • Provide support to ISSMs/ISSOs for implementing, and enforcing information systems security policies, standards, and methodologies.
  • Manage and control changes to the system and assess the security impact of those changes.
  • Aid the Information System Security Manager (ISSM) in maintaining the appropriate operational Information Assurance (IA) posture for a system, program, or enclave.
  • Conduct regular reviews of DISA STIGs, analyze ACAS vulnerability scans, and provide remediation feedback to maintain compliance and support continuous monitoring under RMF.
  • Develop and recommend policies and procedures to ensure information system reliability, availability, and security; perform security evaluations, audits, and reviews to identify vulnerabilities and mitigate risks.
  • Perform duties as a member of the incident response team, conduct risk assessments and investigations, executing appropriate risk mitigations, and overseeing incident response activities.
  • Coordinate with stakeholders to ensure timely submission of accreditation packages and maintain Authorization to Operate (ATO) status.

WHAT YOU’LL NEED TO SUCCEED

Bring your cyber expertise and drive for innovation to GDIT. The Jr. Information Systems Security Officer must have:

  • Education: Bachelors degree or equivalent work experience/education in lieu of a degree
  • Experience: 1+ years of related experience
  • Technical skills: Windows Administration, Office proficiency
  • Security clearance: Active Secret Clearance required to start and the ability to obtain a TS
  • US citizenship required
  • Certifications: Security+ CE or equivalent 8140 - IAT II/IAM I certification
  • Self-starter, able to work independently.
  • High level of attention to detail, ability to analyze and resolve problems, strong communication skills both written and verbal.
  • Due to the nature of work, this is an onsite position five (5) days per week.
  • Primary location will be Falls Church VA. Secondary location will be Chantilly VA

GDIT IS YOUR PLACE:

At GDIT, the mission is our purpose, and our people are at the center of everything we do.

  • Growth: AI-powered career tool that identifies career steps and learning opportunities.
  • Support: An internal mobility team focused on helping you achieve your career goals.
  • Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off.
  • Community: Award-winning culture of innovation and a military-friendly workplace.

OWN YOUR OPPORTUNITY

Explore a career in cyber at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your focus on defending and protecting what matters.

Work Requirements

Years of Experience

1 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

CompTIA Security+ CE | CompTIA - CompTIA

Travel Required

Less than 10%

Citizenship

U.S. Citizenship Required

Posted 2026-02-11

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